Why do you want to remove the support? The only way to do it is find the spot welds on the fenders (The things you bolt the fenders too) cut it off, do the same at a JY to get a better one, then weld it in place. A lot of work. Probably not worth it to do. I was planning on doing it on my 95 Beretta but then discovered how much is damaged. Now I'm parting it out and getting something else.
I don't think it's worth it to do.
1999 Chevrolet Camaro SS (PC'd)
1994 Chevrolet Beretta Z26 Q4 (W41 M90'd)
2004 Chevrolet Silverado 2500 (4WD)
My wife's cars:
1971 Dodge Charger SE (stock and original 383 auto)
2004 Subaru Impreza WRX (kid-hauler)